Its C, Their descriptions are highly biased, and are therefore valuable for the truths the they contain
Based on the actual options posted for this question, I can say that the reason why the Spanish accounts of contact with the Aztecs are important to historians and archaeologists is that their (Spanish) descriptions are greatly biased. And this becomes valuable and important for the truths that they possess. Hope this helps.
answer; the mayans and
i discarded the supernatant and kept the pellet in this part of the experiment because you have to return all unused chemicals into their original containers at the end of each labratory.